Pump



June 29 1926. 1,590,320

C. O. RYDBERG PUMP Fled Sept. 10. 1924 Patented June 29, 1926.

CARL QSKABRYDBERG, or GQTTENBURQSWEDEN.

" "Boivin 'Apvplicaton filed September 10, 19.24, Serial NeffBGQS/I, and in Sweden March S1, 18234.

eerned with `siinpliiicatio'n to reduce the 'ing fior einen the i devine' nurnloer of partsrequired and the ainount o `a ceurate machining nece-sary to make Vsatisfa.etory device, and to that end einploys oertainnovelprinciples sueh as the use of singlefpulnping` elenent to effect all the oil transference. @ther features of importance include the localization of the moving' parts and theuse .offa one-piece cainplate.

"Further objects and advantagesof the interehangeahility of Vparte than obtained heretofore will become apparent as the tdescriptionproceeds. if

:In/the accompanying drawings 1 and 2 Aare centrai 4vertical sections of the lubricator at right angles to 'each other; u

Fig. 3 is a orizontal section along the line in Fig. `1; v I 2Figis a plan vieiv of the top of the luhrcator';

igz is a bottoniplan View 'oit the Cain demand. Fig. is side yview 'of the earn disc with pump and assoeiatedparts.

In the rnbodilnent of .iny invention se"- selected forillustration\5 the lubricant con-- tainergeoneists of casing 1, Ahottein2 and top 4, the latterhaving a'ceiitral cup 5 with annu-lar sli'dei' rotates against the hottorn .2, b'eingivoted on `a central fastened to thebt`t`oni 2 andthe top at agende. The Shan thus-holds ,uit parte jm assemblea nennen. The aide 7 is 'unitary a riorrnrtfheel l() driven by worin 11, the Whole beingaxially slidahlel on shaft 8. Bisel() andslide 7, are pressed downward against lthe bottom 2h57 means oi spring 9. 'cylinder 12 is attached to disc 10 'and communicates With a hole 13 in the slide Pumpplunger14 is provided Witha properlyfformed head 14', Which islept in engageinent With Aav cani disc 16 by means of a springgl in the bottomofthe cylinder be neath'the plunger. .A Bomber of channels 17, 18, 1 9

thebettomplate 2 are arranged gfqiil `iii"r'luuober 'to1 the number The 'orifices of 'said 'channels are in acircle as at 21P 22, 23 and 24, theradi'us ofsaid circle Being about :equal to `the^iistance frein the center of thelhle 13 to the center of theshaft 8, so that the puin cilinfder can'succ'essiVely communicate Witl'i'each of`saidjorices2l-24 i'n ach'group. )neef the Chahne'la 24v`r iin @ih feioun cdmlnc ate's Wit-ha luhrieatingjpipe, attached to one ofthe spouts 3 beneath the hotto1n2gfth'e second, `17, with the oil container the third channel 18y with a pipe 25,-W'l1ieh extends Suf ivardly through the top 4 'and1ie bientfsotiiat the oil can dron dov'nfro'n ftsinouthjnto acup F27 formedin the topplate 4; and the. fourth channel 19 opens intoaoifpe 26 endingin said Icup-27. The pipesQ ald 26 'form theV visible passage 'for the oil and can of course be located anyWherc-"otside the container 1. i

The puinp is operatedloythecani disc-"fn the ollowinor inanner: A 's lhole 13 passes the oriiizc'e .21,.the luloric'an`t isv Sfueletl fron "the "eil container. Then the 'liinger rlemains elevated until 'thahole 413 -re s with t l'1`e neit orifice 22. this nioiifent the plunger isjlove'red tand eXpel'S the j lubrican anni. the. dem@ r12 mediaria@ 25. After the Oriide `h a's "o e erng pa$sed the plunger ren 1ain`s" itver` ed until the. next orifice been reaehed, when anew 'T SlCtlOl mdvmflt 'takes' P11216@ a-Id bi1. rm the pipe i'ejsucled 'iI i. After stilljanother stationary 'period Whilejpasfsing fiforn the Qrfee. `23. t0 the .Orifice 24, the 0'11 .nta .Cylinderis forcefdput through t'lie 'c l 1annejl 2 4 into the lubricating ypipe connected hereto.

i "loze- Thereafter, the sarnf'e .cycle isre'p *aiming with-the1f'0rij2l ofthe ond ',fgro'ulp.4 Ihfu's the 'pinnpjcooperat's "s iicf cessively with ail the orifices jand ail Vthe igroups and continhes'its operations repeatgmvdisc isrifgfidlyfon shaft 8, @a1-fies interagire@ 28a its, enumer- 'ence The, peripheral distancfefhetteen the centers of the earns- 28 cforresnon'ds tothe in tervalshetw'e'en the pumping actinsand is equal to the distance'between `the `centers of the orifices `22 and 24., The tops of tlie`,'canis A are an ma the pripilaalieagth of the flat @ain tops correSld.. to Ithefourre. it

pfcrbds, dwells; ilirlunar wheel-hief ered;` The giclee the ia-nis 1n peripheral directionv are preferably inclined at 45.

Thedwells between the cams; are flat,`as at V3l and 32 andthe peripheral length ofl these .t dwells "corresponds tothe quiescent periods:

`of theplunger Whenelevated,'V Tvvopairs of inclined cani surfaces vvith canitops'and Vdwells therebetween cooperate'. With eachV group ofro'rifices.V Tlie'plunger head la vhas bility,rmeans are provided'for adjusting the "theVV likeV vis provided, 'vertically slidab'le in, aslot inthe cam discfl'th'rough leachfdvvell 31v so that the'headetthevplunger"aloutsA against. said y plate tof,` liniitlrits stroke.- EachA 1V platejBS iscarried'byfa pi'nf 341 slidiiigin f j length ofthe plunger stroke., `so that lit is f less'fvvhentheplunger sucks inoil; fromk the" container than Whenfsucking oil, from the" pipe 26.1 Forftliisfpurpose plate cam 335er' 1 an .aperture in afdisc 35 above the camf disc; .'Each Vpin B4A is provided vvithi a flanged Yhead 38 .and4 a spring 36. tending to hold the head' against adjustment screiv. 37 threaded in the top 4,'see Figs, 2 and 4L. Bymeansof screws v 87 the platesl 'canL-bej. set in any'desi'red vvertical positions to limit the strokesof the Y Vvplungerselectively. V'llheslide 7 rotates in Y l i the directionof the arrovv in Fig. j Th'etop'is provided With-a cover 39. v'vhichV iszheid inkpiaeby thetthreaaeapiugcana fisxinade of/glass or other transparent ma-d ferial in frontfof the cups-27 for observation of the` deliveryfof th'el oil. f

Y. i 'A' ball check valvev may be inserted oilA :passage l' to` Athe [lubricating pipes ..'as

shown in the spouts 3 to prevent' l'eakageof i oilf under slide 7 or lifting of the slide by 'the back` pressure of the'oilV .Itwill be'V noted tliattlie .only precise sur? face fit yrequired in thezwhole assembly, is

y that between slide 7, and-"the bottom plate on Which it rides.

The pivotffor plated() lneed only bejsuflivciently accurate tosecure' substantialzregistry between orificel andV Y faces;

l the openings over4v lWhichjt isi-to pass. Fur-7' Y thermo're,' the engagement `loetween`-V these, surfaces. being. maintained gby spring` 9,- noV temperature .differences between `the parts, vvithY accompanying differences in thermal expansion, will interfere 4 with maintaining perfect sliding contact between these{stir-A v 'Without further elaborati-on,y

' ing Will so fully explain the gist of invention, that others may, by 'applyingfciir` rent knowledge7 readily. adapt fthe samefor use under [various Y condi-tions., of service, i Without eliminating certa-in"*feati'ires jvvhich cant through the "first Van mayproperlybe saidffo constitute-theres?" .i

sential` items of'pnoveltyinvolved, which tome by the following claims. fi; Y

Irclairnj m 1 Y Aitems are intended to bedefined .andfsecuredV 1 .2 A ivi 'l ;1.1In:lubricators 'providedl withY rotat.- Y'

able pumping device, the VVVccmbination Oiga i stationary bottom plate having anumber u of lchannels Ain itvvitli their orifices arranged-'i in' acircle ingroups of four, a slide vrotat`- ablefaround a vshaft,andfcoveringv saidori-V 1 lices, said slide lbeing provideol- W itli.V fone f aperture so arranged'fthatiticommunic'ates l 'successivelyy ,l during. the t rotation with the I orifices, lfafpump ,fia-ed :to.,s`aid" slide above;4 i

said aperture, 'faY camjdisc fixed toiv saidfshaft and cooperating with the head" of; the pump' plunger, onejoff saidifchannels each' vgroup commun'icatingrrwith the lubricators`v oilf conf tainer, I a; second channel. v Ecommunicating from its mouth, j 'aj third channehcoiflinuniL eating. vvith'a' pipe-,forming a cup uat kits Vend,

solocated that `it receive'thefoil drip.,- p V ping-'from said; inouthyV a 'fourthVV channel communicating With-a1' lubricating pipefto 'nthe machine,Vmeansftofrotate:said slide with 'i 'Y S5 i Vvvith a pipe*outsidethekoil-{container'and:if.A bent at'fthe endrto'allowits content to drop,y

pump around said'shaftgfand,saidfcam Qdisc'f providedv vwith ,cams jatfthe. circumference of .the number equal'lto halfthe'number@`v of saidoriiices and soy located in; regardjo" r" saidorifices that 'the pumpv =`vvillfsu'clrv4 vr"the lubricant through the first' and thir'd'foriflces and discharge same throught-he secondfaliid fourth OFiCesg 1 stationary bottom platehaving'a number of channels in it .'With their orifices arranged ,in alcircle in. groups offfour, ,ai sliderotat 32. l'In lubricators provided Vvvithfavrotat; able pumpingdevice the combination .of aV able "around `aVr shaftjandf coveriingfsaidl orif- Y fices,said slidelbeinjggprovided with one aperture'A 'so' arranged that 'it communicates successively Vduring the v:rotationv with the ori' ifices, a pump iiXedFtosaidfV-slide above'said aperture, a cam VVdis'ciired to saidshaft-land;

cooperating'.WithV ftlie' headof :.the pump plunger, one offsaid channels in veachgroup: communicating with the lubricators 4 oil' con# tainer, a second. channel communicating with f i" apipe outside'the oil-container and bentatr Y the end to. allow'its V':ontenttoV drip frf'miiitsVV mouth, a :third channel c ominuiiicatingfl with aV pipe forming a cup at its pend'so V,located mouth, af fourth channel. communicating With "a l.lubricating pipe toU 'the machine', means tofrotate'said-slide With pump around said-shaft, andysaidfcam disc provided with camsat the circumference -of lthe'ildisc in' nu'inben equal vto half vthe numberof said Y orifices .and Vso located in regard'` to said orifices vthat the pump vthat it can receive the oil-drippingfromlsaid l discharging measuredV charges YfromV saidn sight chamber by means of said same pump, and adjustment means for varying one charge independent of the other. i

4, In a device of the class described, in

, combination, an oil chamber, a sight chamber, a pump comprising a single piston of uniform diametenand a single cylinder receiving said Vpistoinmeans for transferring j measured charges'from oil chamber to sight chamber by means of said pump, and means for discharging measured charges from said sight chamber by means of said same pump. v

`5.` In a circ'ulator, in combination, a champrojecting axially from the periphery of said plate, said plate having an `orifice opening into said mechanism, resilient means pressing said plate axially against the chamber Wallto maintain a seal for said orifice, a plurality of sets of conduits debouching to register in succession with said orifice, each set including a. supply conduit, a sight conduita return conduit or stand pipe, and a discharge conduit, said conduits registering with said orifice in the order named, said sight conduit discharging visibly into said stand pipe, a first stationary' cam plate spaced axially from said movable plate, inclined cam surfaces and dwells on said plate for controlling the movement of said pump mechanism to withdraw a measured charge from a supply conduit and deliver the same to av sight conduit and then to withdraw a charge from said stand pipe and force the same into said discharge conduit, a check valve in said discharge conduit, a plurality of bottom dwell cams controlling the amount measured, and individual means for adjusting the extent of each measuring stroke, said bottom dwell cams and adjusting means comprising simple plates projecting through slots in said cam plate, vertical plungers carrying said dwell cams, a second cam plate v carrying and guiding said plungers, springs urging said plungers up and adjusting screws threaded through the top of said chamber and bearing on the tops of said plungers. x

e. Ina erculator, in cenibinatien, a @kann ber, a flat plate mounted forrotatien about the Iaxis thereof, pump mechanism `carried by said plat-e, said platte having an orifice opening intosaid mechanism, resilient means pressing said plate axially against the chamber wall to maintain a seal -for said orifice, conduits debouching Vto register in succession with said Orifice, a first stationary cam plate, inclined cam surfaces and dwells on said plate for controlling the movement of said pump mechanism, a plurality of bottom dwell cams controllingcertain of the pump strokes, and individual means for adjusting the extend of said strokes, said bottom dwell cams and adjusting means comprising simple plates projecting through slots in said cam plate, vertical plungers carrying said dwell cams, and a second cam plate carrying and guiding said plungers.

.7. In la circulatoi, in combination, a chamber, a fiat plate mounted for rotation about the axis thereof, pump mechanism carried by said plate, said plate having an orifice opening into said mechanism, resilient means pressing said plate axially against the cham ber wall to maintain a seal for said orifice, L

conduits debouching to register in succession with said orifice, a stationary cam plate, inclined cam surfaces and dwells on said plate for controlling the movement of said pump mechanism, a pluralityof bottom dwell cams controlling certain ot' the pump strokes, and individual means for adjusting the extent of said strokes, said bottom dwell cams and adjusting means comprising simple plates projecting through slots in'said cam plate. and vertical plungers carrying said dwell cams.

8. In a circulator, in combination, a chamber, a flat plate mounted for rotation about the axis therof, pump mechanism carried by said plate, said plate having an orifice opening into said mechanism, resilient means pressing said plate axially against the chamber wall to maintain a seal for said orifice, conduits debouching to register in succession with said orifice, a stationary cam plate, inclined cam surfaces and dwells on said plate for controlling the movement of said pump mechanism, a plurality of bottom dwell cams controlling certain of the pump strokes, and individual means for adjusting said dwell cams.

9. In a circulator, in combination, a chamber, a flat plate mounted for rotation about the axis thereof, a single pump mechanism carried by said plate, said plate having an orifice opening into said mechanism, resilient means pressing said plate axially against the chamber wall to maintain a seal for said orifice, conduits debouching to registerl iai movement of said'pump meehanismto with:`

draiv a 'chargev` from a supply conduit a-nd, deliver the saine toa slghtconduitjand then.

to WithdrawA a :charge Vfroml said'standrpipe and force the same into a discharge'conduit.^ i v e Y u chamber, a filet platemounted for rotationV l0. Ina circulator;in combination, chain- 'ber, a movable 'member jtherein, af single pumpcarried by said member, conduits de- 1 bouchino' to re lster insuccessionvvvith said;

'J 1 l .1 pump mechanismduring.movement:of said ymember, :including a supply'conduit, YaV sight ing With said pump mechanism in the/order named, said sight conduit dischargingvis-` conduit7 areturn conduit or'standA pipeegandV adiseharge conduit, said conduitsregisterjibly into said 'stand pipe,V a stationary :cam

plate,V and inclined camsuriacesafnd dwells on s'aidfplateniior controllingv theinovement of said pump mechanism tofwitlijdravvka measured charge `from a supply conduitand deliverthe sainel toa sight conduitfandthenf to VWithdrawarchange' tronisaid' stand pipe and'fforce the same into said discharge con@ V 11. AIn a charge V-condutps'aid conduits registering with saidrmechanism in the order named,

said sight conduit dischargingvisiblylin- .Y ciroulator,V c in coinbination',` 'a Y v chmber, a single pumpmechanisin-movably I mounted therein, Yconcluit's"debouching, to Y Y register in successioirwith Vsaid mecheniein Aincluding a supply conduit, a1 sight conduit,` 'a return conduitL-or stand pipe;y and a'dise plate-'fior' controlling movement `of said pump mechanisin-to wvithdrawa measured f charge romgaffsupply conduit and deliver the same tofa- VSightconduit andthen to With- 12; 'Inf a circulator, 'i n" combination,V re

about the axis thereof, `a Ysingle pump Ymech-V 0.V Y' dra-"vv ka charge'from said standfpipe QlTce j the same intol saiddischarge conduit. 4

45 anisin'rprojecting"axiallyfromthe'periphery; of saidplate, said',plate-havingian kori'iee p ,opening intoV said mechanism,'resilientmeans. Y pressing said plate axially against'the: cl'lain-V Y bei?V Wall tofmaintainpiafjseal lfortsaid orifice;Y conduits deboucliin'g toregister in succession'V with Vsaidorilice including asupply. conduit, c af sight conduit, Va return'conduit for standV i pipeLand a vdischarge conduit'said'conduits; registering with-saidorifice viii-Sth named, saidfsight conduit discha'rging;v vis#V ibly into said 'standrpipeJ a stationarycanr `plate spaced 'aXiallyf-roin'seid i'novableplate,` inclined fcainfsurfaces anyd dwellslonl saidV plate for controlling the movement fief! said` Vpunipmechanisrn tovvithdraw a Ineas'uedi',Y charge'from a supply conduit and.deliverthfe'V lsame tov a" sight'conduit and: then .to 'Withfe f draw aA charge fromsaidstand'pipelidrforce' theA same into saidd-is'char'ge conduitga checkV valve in said discharge 'conduit7V a jplurality of bottom dwell cams controllingthe'emount l measured, vand individual means'. oradjust ing the extent ofeachmeasuring :strokef 1n Witness vvhereof, I hereunto subscribe 'Inv naine this 21st day `oiAugust,v-l924f-. Y Y

, f ori-RL osifne RYDBERG. 

